142 



EVENINGS AT THE MICROSCOPE. 



and set side by side in regular whorls, the bottom edges 

 of which form the rings of which the tongue is composed. 

 The tip is probably a sensitive organ of taste, for it ter- 

 minates in a minute globose pulpy body, whose surface is 

 beset with tiny curved points. Thus I have pointed out 

 to you all the parts which enter into the mouth of the 



JAWS OF BEE. 



beetle, except the maxillary palpi ; and these, very small 

 indeed, but quite distinct, you may see on the outer edge 

 of the maxilla, just below the point where their outline 

 begins to swell into its graceful curve. 



The cylindrical tongue is capable of considerable ex- 



